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Citadel Interview Question

CitadelQuant Research Intern Interview

Q: Integrate xlogx. Q: Put the numbers 1~1000 around a circle in order. Start at 1, you delete the number 1, 3, 5, ... and carry on this pattern of deleting numbers alternatively until there's only one number left. Determine that number.

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Disclaimer: We are not affiliated with Citadel in any way. This question is sourced from interviewees and public sources and may not be accurate or reflective of the company's actual interview process.